Adolfo's catfish, Corydoras adolfoi, is a tropical freshwater fish belonging to the Corydoradinae sub-family of the Callichthyidae family. It originates in inland waters in South America, and is found in the Rio Negro basin in Brazil. It was originally described by Warren Burgess in 1982. The fish will grow in length up to 2.2 inches (5.7 centimeters). It feeds on worms, benthic crustaceans, insects, and plant matter. Data from a wild locality show temperature 78 °F (25,5 Celsius°C), very low pH (5,3-5,4) and conductivity 7,0-8,3 microSiemens.